Improvement in converting motion



L. PLANER. DEVICE FOR CONVERTING MOTION.

No. 28,403. Patented May 22, 1860.

lUNITED STATES PATENT I OFFICE.

L'oUIs PLANER, OF new. YORK, N. Y.

IMPROVEMENT IN CONVERT'ING MOTION.-

Specification forming paitof Letters-Patent. No. 28,4fl3, dated May 221669,-

To (112 whom it natty concern v Be itknown that l, LOUISPLANER, of the city, county, and 'Stateof New York, have invented a nowand Improved Device for Gon- Fig. 4 is a horizontal section of the same, taken in the plane indicated by the line y y, Fig. 1. Fig.5 is a detached view of one of the workmg parts.

Similar letters of reference in the several figuresindicate corresponding parts.

This invention consists, first, in the employment of a hinged oscillating cam, in combination with two dogs operating in a grooved -wheel in such a manner that in moving said cam in'one' direction the dogs are forced against the sides ofthe grooved wheel, and the wheel is caused to partake of the motionof the dogs, whereas in moving the cam in the other direction the dogs are released and allowed to move independent from the wheel; second, in arranging said dogs with V- shaped edges to fit into a corresponding V-shaped groove in the whee],'-whereby said dogs are caused to retain their places without any 'further assistance, and at the same time the pressure exerted by the dogs on the sides of the groove is equally divided over the working-surfaces, causing a uniform wear all over; third, in giving to the advancing corners of the dogs the shape of knife-edges sweeping close over the bottom of the groove in the wheel, so that all dirt or grease which'may settle in the interior of the groove is scraped off and caused to discharge itself over the sides of the grooved wheel;

fourth, in arranging one or both of said dogs with sloping surfaces, whereby the rear edge of the dog iscaused to projeetbeyond the edge of the grooved wheel, so that all dirt which may be scraped oh by the knife-edged corners of the dog or dogs is caused to be discharged over the sides of the grooved wheel.

To enable those skilled in the artto make and use my invention,I 'will proceed to describe its construction and operation with reference to the drawings.

A represents a ,wheel, which turns on a. pivot 01'. arbor, a. iA'groove or recess, B, is turned into its side, and two dogs,- 0 D, .are placed loosely intosaid recess. The dog is'retained by a slot, 1), :fitting over the pivot a, and a nose, 0, which extends from the same. by coming' in contact with a lug, d, on the upper surface of the dog D, retains the latter. A cam, E, is hinged to the end of the dog 0, and a re cess, e, in the edge of this cam serves to receive a nose, f, projecting from the inner edge of the dog I). Thiscam is thus firmlyaunited with the dog (J, and it is so arranged that on turning the same in the direction of the arrow marked on it in Fig. 1 the two dogs are forced apart, so as to grip the'sides'of the recess or groove B in the wheel A, and cause the latter to partake of any motion which may be imparted to the dogs; but if the cam is turned in the direction opposite to the arrowmarked thereon in Fig. 1 the dogs release the sides of the recess, and they a e then-allowed to recede without'imparting any motion to the wheel 'A.

The recess Bis turned in, so as to present the shape of a V, as clearly shown in Fig. 4, and the edges Zm of the dogs 0 D are made to correspond to this shape, so that any pressure which causes them to bind :against the sides of the recess has a tendency to force the edges of the dogs'downtoward the inner corner of the recess, thereby dividing the pressure equally over the rubbing surfaces} 'Whenthe edges of the grooves and of thedogs are made square, the dogs will always haveatendencyjto' be forced out of the groove, and'the rubbing'surfaces willwear more in one place ithan in the other. With my arrangementgof the V shaped edges the dogs are :retainedinQth'e recess and the rubbing surfaces wear uniformly-all over.

The advancing corners c d of myqdogs aremade in the form of knife-edges, which sweep close over the bottom of the recess or groove B, so that any dirt or grease which may accu; mulate in said recess is scraped off and cauiie'd to roll down over the edge of the wheelyand to prevent the dirt from dropping into-"thew cess as as it rolls over the dogs I {new madethe upper surface of the same, or of the dog'fl? alone, sloping'down toward the advancing corthis case the cam E is furnished with the arms g h, the arm g being subjected to the pressure of a spring i, which serves to throw the cam in such a position. as to release the dogs 0 I), and the arm h to connect with the drivingshaft, so that by its action the same receives the required oscillating motion. By moving the arm h inthe direction of arrow 1 the dogs 0 D" are-forced apart, and the wheelA is caused to rotate'in the direction of the arrow marked thereon in Fig. 1. On releasing the arm h, the cam, together with the dogs, is forced back to its original position by theaction of the spring i, ready for a new hold.

- It is obvious that this device may be used in all cases where it is desired to convert reciprocating rectilinear into intermittent rotary motion, and it will be found of great advantage, as the peculiar shape given. to the workingsurihces causes the same to wear quite uni for nly.

What I claim as new, and desireto seoureby Letters Patent, is

1. The employment of the hinged cam E, in combination with the dogs 0 1) and grooved wheel A, constructed and operating as and for the purpose described.

2. Arranging the dogs 0 D with V-shaped edges lm, to fit into a corresponding V-shaped groove or recess, B, in the wheel A, substan tially in the manner and for the purpose specified.

3. Giving to the advancing corners c d of the dogs 0 D the shape of knife-edges, snbs'tantially as and for the purpose set forth.

4, Arranging the surface of the dog 0 in such a inannerthat its rear edge projects above the upper edge of the recess B, and that all the dirt scraped off. by the advancing corner 0 is caused to discharge over the wheel A, substanti ally as described. I

W. E'MnnsoN, Y 'F. G A'WI'E'RDAME, 

